3 years ago

The ratio of the sides of a triangle is 2:6:7. If the perimeter is 195 meters, what is the length of the longest side

1 answer:

34kurt3 years ago

3 0

Suppose the three sides are 2x, 6x, and 7x in length.
2x+6x+7x+195
15x=195
x=195/15=13
the longest side is 7*13=91 meters

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-1/2x=-10<br><img src="https://tex.z-dn.net/?f=%20-%201%20%5Cdiv%202x%20%3D%20%20-%2010%20" id="TexFormula1" title=" - 1 \div 2x

Triss [41]

Answer:

x= 1/20

Step-by-step explanation:

-1/2x = -10

multiply by 2x on each side

2x(-1/2x) = -10*2x

-1 = -20x

divide by -20

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1/20 =x

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2 years ago

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In a 5 km race, Anna swims 450 m, then runs 800 m. She then cycles the rest of the race. How many kilometres does she cycle?

Umnica [9.8K]

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450m+800m= 1250m
5000m-1250m= 3,750m
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3 years ago

30 is what percent of 40?

siniylev [52]

Answer:

Step-by-step explanation:

7 0

2 years ago

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a rolling pin is shaped like a cylinder with a diameter of 2 inches and a height of 10 inches . how many square inches of space

Liula [17]

Answer:

62.8 square inches

Step-by-step explanation:

we know that

To find out how many square inches of space the rolling pin comes in contact with after one complete roll, determine the lateral area of the rolling pin

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$LA=\pi Dh$

we have

$D=2\ in\\h=10\ in\\\pi=3.14$

substitute

$LA=3.14(2)(10)=62.8\ in^2$

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